User manual EASTON ARCHERY EASTON TUNE

[. . . ] 27 2 Arrow Tuning and Maintenance Guide INTRODUCTION Successful tuning can only be achieved by using a properly spined arrow shaft. Start with a shaft recommended on Easton's Arrow Shaft Selection Chart, available on the Easton web site at www. eastonarchery. com, in the Easton Target and Bowhunting catalogs, and on the Easton Shaft Selector "Plus" software program. Problems caused by an improperly spined shaft will become evident during tuning. Before tuning, be sure that shafts are straight, properly fletched, and have perfectly aligned nocks. Find the Limb Centers In order to have a reference point from which to adjust the arrow's left/right position on the bow, it is necessary to find and mark the exact center of the limbs on a recurve bow, or what is termed the "balanced limb center" on a compound bow, as defined below. Recurve Bows To find the limb center for recurve bows, place a piece of masking tape across the inside of each limb near the riser. [. . . ] Never use rotary tube cutters, hack saws or other methods that can damage the shaft or leave a rough cut. Always wear a NIOSH approved dust mask and safety glasses when cutting arrow shafts. Use a high-speed abrasive-wheel cutoff tool designed specifically for cutting arrow shafts. The total length of the shaft plus nock system should equal your desired Correct Arrow Length. Set the shaft support on the cutoff tool so the abrasive wheel only cuts about 1/3 through the diameter of the shaft. While slowly rotating the shaft in the opposite direction as the cutoff wheel, gently push the shaft into the wheel and rotate the shaft until it is completely cut. Continue to slowly rotate the shaft two more revolutions to ensure a square cut. Some models of Beman carbon shafts are designed to be fitted with either outserts (point adapters) or over-fit points. These fit over the outside of the shaft, which makes them larger in diameter than the shaft. This adds some complexity to determining the best shaft length. Recommended Correct Arrow Length (Carbon Shafts with External Components) Some Beman carbon shafts are fitted with components that fit over the outside of the shaft. This makes the outserts and over-fit points larger in diameter than the shaft. On bows such as longbows, where the arrow contacts the sight window, the measurement is made from the back of the outsert (instead of the broadhead) to the back of the bow. This prevents any disturbance to the arrow caused by the outsert contacting the bow's riser during the draw. For target and field arrows, or hunting arrows shot from bows with cutout sight windows, use this guideline. If the arrow sets away from the sight window enough for the outsert or the over-fit point to clear the riser, then the oneinch measurement should be taken from the back of the outsert or the over-fit point to the arrow rest. Note that some arrow rests, especially stick-on rests, may have a mounting base that could contact the outsert or the overfit point. If so, measure from the outsert or from the overfit point to the forward portion of the arrow rest base. Easton Aluminum Deburr no more than 1/4 of the wall thickness Easton X10, A/C/E, A/C/C, HyperSpeed & Beman Matrix High-strength aluminum core tube. Deburr no more than 1/4 of the aluminum wall Easton Carbon Composite (C2) and Beman ICS Deburr just enough to remove burr. Determining Shaft Cut Length Note that by measuring your Correct Arrow Length from the bottom of the nock groove, the total length will include the small distance that the nock base extends beyond the nock taper. Therefore, your shaft cut length is slightly shorter than your Correct Arrow Length. Beman External Component 45° Chamfer 18 Arrow Tuning and Maintenance Guide Shaft Size Identification Easton uses various arrow shaft outside diameters and wall thicknesses to obtain the necessary number of shaft spines needed to shoot well from nearly all bow weight and arrow length combinations. The outside diameter is the main factor in determining shaft stiffness. This diameter is coded in the first two digits of the shaft size number--for example, in 2312, the 23 = 23/64". This is the shaft diameter rounded to the nearest sixty-fourth of an inch. The wall thickness code is the second two digits of the shaft size number. [. . . ] ARCHER'S ALMANAC--The most complete archery reference manual available. Everything from how-to and where-to information from the nation's top archers to in-depth detail about equipment specifications, graphics that reveal your own arrow trajectory, charts that show changes in velocity as bow weight changes, and more!Shot at an incredible 7, 000 frames per second, you can see the answers to all your questions about arrow rests, fingers vs. For more information, call or write Easton at the address and phone number on the back page of this manual, or visit the Easton Web site at www. eastonarchery. com. 32 Arrow Tuning and Maintenance Guide arrow. [. . . ]